Transaction log redaction is the removal of personal account data from a system file under PCI-DSS v4.0 Req. 3. That requirement limits how a card number may persist. anonym.plus marks each value on your device, so the file stays useful for debugging while data is shielded.
When this applies
One line can echo a full card number or a buyer email in plain text. You strip those under Requirement 3 before the file goes to a vendor.
How anonym.plus handles it
- Open the file in anonym.plus on your device.
- The tool scans each line for sensitive cells.
- It flags card numbers, emails, and phone values.
- Keep timestamps and trace IDs you need for debugging.
- Swap or black out the confirmed items.
- Save the cleaned copy locally.
What you need to provide
- The log file (TXT, CSV, or JSON).
- An operator (Replace keeps lines parseable).
- Optional allow-list for trace and request IDs.
PII & financial identifiers detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Account | CREDIT_CARD | pan=4111111111111111 → [CARD] |
| Contact | EMAIL_ADDRESS | user=lee@example.com → [EMAIL] |
| Contact | PHONE_NUMBER | +1 415 555 7782 → [PHONE] |
| Bank | IBAN_CODE | iban=DE89... → [IBAN] |
| Names | PERSON | name=J. Lee → [NAME] |
| Dates | DATE_TIME | 2026-06-12T14:02 → [TIME] |
Compliance achieved
- Limits card data in stored records per PCI-DSS v4.0 Req. 3.
- Keeps timestamps and trace IDs intact for triage.
- Offline work keeps the file off any server.
Anonymize transaction logs offline — see plans & start free →
Limitations & cautions
A line can hide a card number inside an odd field or a URL. The tool flags known patterns; review unusual entries yourself before you share the file.
Frequently asked questions
Will my timestamps and trace IDs survive?
Yes. Allow-list those fields so they stay while sensitive cells are removed.
Can it handle JSON log lines?
Yes. The tool reads TXT, CSV, and JSON, flagging the sensitive values in each row.
Does the file leave my machine?
No. Work runs locally with no cloud step, so it stays where you control it.